STRONG-COUPLING POLARON IN A SLAB OF POLAR CRYSTAL

Authors
HUANG ZH CHEN CY LIANG SD ZHANG SQ
Citation
Zh. Huang et al., STRONG-COUPLING POLARON IN A SLAB OF POLAR CRYSTAL, Chinese Physics Letters, 11(12), 1994, pp. 754-757
Citations number
8
Categorie Soggetti
Physics
Journal title
Chinese Physics Letters → ACNP
ISSN journal
0256307X
Volume
11
Issue
12
Year of publication
1994
Pages
754 - 757
Database
ISI
SICI code
0256-307X(1994)11:12<754:SPIASO>2.0.ZU;2-B
Abstract
By using the extensive Pekar's variational method, the strong coupling polaron energy and the effective mass in a slab of polar crystal incl uding both LO- and SO-phonons are derived as a function of the thickne ss of slab and the coupling constant. When the slab is thin, the SO-ph onons not only influence the ground state energy, but also make the po laronic effective mass become non-isotropic.